Dodgy batch of thermostats
Just a quick heads up.
I changed the thermostat on my 159 1.9jtdm yesterday and used a Circoli stat from ECP. All went well and I had warm air in the cabin and an engine that was up to temp for the first time in ages until about 1/2 way through the journey home when the plastic fitting into the metal housing had completely come apart and dumped all of my coolant out.
I spoke to ECP today and the chap I spoke to had the identical issue with another Circoli stat 2 weeks ago but that was for a 156 (he didn't know which engine) but they had all been recalled.
They're sending me the OEM stat for the same price and replacement coolant FOC but if you're looking to change your thermostat it might be a good shout to avoid the Circoli ones in the near future.
Here's hoping nothing has been damaged in the few miles it took to get home last night.